2 * $Id: adouble.h,v 1.32 2006-09-29 09:44:59 didg Exp $
3 * Copyright (c) 1990,1991 Regents of The University of Michigan.
6 * Permission to use, copy, modify, and distribute this software and
7 * its documentation for any purpose and without fee is hereby granted,
8 * provided that the above copyright notice appears in all copies and
9 * that both that copyright notice and this permission notice appear
10 * in supporting documentation, and that the name of The University
11 * of Michigan not be used in advertising or publicity pertaining to
12 * distribution of the software without specific, written prior
13 * permission. This software is supplied as is without expressed or
14 * implied warranties of any kind.
16 * Research Systems Unix Group
17 * The University of Michigan
19 * 535 W. William Street
22 * netatalk@itd.umich.edu
25 #ifndef _ATALK_ADOUBLE_H
26 #define _ATALK_ADOUBLE_H
32 /* -------------------
33 * need pread() and pwrite()
50 Still have to figure out which platforms really
51 need _XOPEN_SOURCE defined for pread.
53 #if defined(HAVE_PREAD) && !defined(SOLARIS) && !defined(__OpenBSD__) && !defined(__NetBSD__) && !defined(__FreeBSD__) && !defined(TRU64)
57 #define _XOPEN_SOURCE 500
60 #include <sys/types.h>
69 #include <sys/cdefs.h>
76 #ifdef HAVE_SYS_TIME_H
79 #include <netatalk/endian.h>
82 #define AD_VERSION1 0x00010000
83 #define SFM_VERSION AD_VERSION1
85 #define AD_VERSION2 0x00020000
86 #define AD_VERSION2_OSX 0x00020001
87 #define AD_VERSION1_ADS 0x00010002
88 #define AD_VERSION1_SFM 0x00010003
89 #define AD_VERSION AD_VERSION2
92 * AppleDouble entry IDs.
97 #define ADEID_COMMENT 4
98 #define ADEID_ICONBW 5
99 #define ADEID_ICONCOL 6
100 #define ADEID_FILEI 7 /* v1, replaced by: */
101 #define ADEID_FILEDATESI 8 /* this */
102 #define ADEID_FINDERI 9
103 #define ADEID_MACFILEI 10 /* we don't use this */
104 #define ADEID_PRODOSFILEI 11 /* we store prodos info here */
105 #define ADEID_MSDOSFILEI 12 /* we don't use this */
106 #define ADEID_SHORTNAME 13
107 #define ADEID_AFPFILEI 14 /* where the rest of the FILEI info goes */
110 #if AD_VERSION == AD_VERSION1
113 /* netatalk private note fileid reused DID */
114 #define ADEID_PRIVDEV 16
115 #define ADEID_PRIVINO 17
116 #define ADEID_PRIVSYN 18 /* in synch with database */
117 #define ADEID_PRIVID 19
118 #define ADEID_SFMRESERVE1 20
119 #define ADEID_SFMRESERVE2 21
121 #define AD_DEV 0x80444556
122 #define AD_INO 0x80494E4F
123 #define AD_SYN 0x8053594E
124 #define AD_ID 0x8053567E
129 #define AD_APPLESINGLE_MAGIC 0x00051600
130 #define AD_APPLEDOUBLE_MAGIC 0x00051607
131 #define AD_MAGIC AD_APPLEDOUBLE_MAGIC
133 #define SFM_MAGIC 0x00504641
135 /* sizes of relevant entry bits */
136 #define ADEDLEN_MAGIC 4
137 #define ADEDLEN_VERSION 4
138 #define ADEDLEN_FILLER 16
139 #define ADEDLEN_NENTRIES 2
142 #define AD_HEADER_LEN (ADEDLEN_MAGIC + ADEDLEN_VERSION + \
143 ADEDLEN_FILLER + ADEDLEN_NENTRIES)
144 #define AD_ENTRY_LEN 12 /* size of a single entry header */
146 /* v1 field widths */
147 #define ADEDLEN_NAME 255
148 #define ADEDLEN_COMMENT 200
149 #define ADEDLEN_FILEI 16
150 #define ADEDLEN_FINDERI 32
152 /* v2 field widths */
153 #define ADEDLEN_FILEDATESI 16
154 #define ADEDLEN_SHORTNAME 12 /* length up to 8.3 */
155 #define ADEDLEN_AFPFILEI 4
156 #define ADEDLEN_MACFILEI 4
157 #define ADEDLEN_PRODOSFILEI 8
158 #define ADEDLEN_MSDOSFILEI 2
159 #define ADEDLEN_DID 4
160 #define ADEDLEN_PRIVDEV 8
161 #define ADEDLEN_PRIVINO 8
162 #define ADEDLEN_PRIVSYN 8
163 #define ADEDLEN_PRIVID 4
165 #define ADEID_NUM_V1 5
166 #define ADEID_NUM_V2 13
168 // #define ADEID_NUM_SFM 5
169 /* sizeof SFM meta data */
170 #define AD_SFM_LEN 60
173 #define AD_DATASZ1 (AD_HEADER_LEN + ADEDLEN_NAME + ADEDLEN_COMMENT +ADEDLEN_FILEI +ADEDLEN_FINDERI+\
174 ADEID_NUM_V1*AD_ENTRY_LEN)
176 #if AD_DATASZ1 != 589
177 #error bad size for AD_DATASZ1
180 #define AD_NEWSZ2 (ADEDLEN_DID + ADEDLEN_AFPFILEI +ADEDLEN_SHORTNAME +ADEDLEN_PRODOSFILEI \
181 +ADEDLEN_PRIVDEV +ADEDLEN_PRIVINO +ADEDLEN_PRIVSYN+ ADEDLEN_PRIVID)
184 #define AD_DATASZ2 (AD_DATASZ1 + AD_NEWSZ2 + (ADEID_NUM_V2 -ADEID_NUM_V1)*AD_ENTRY_LEN)
186 #if AD_DATASZ2 != 741
187 #error bad size for AD_DATASZ2
190 #define AD_DATASZ_MAX 1024
191 #if AD_VERSION == AD_VERSION1
192 #define AD_DATASZ AD_DATASZ1 /* hold enough for the entries */
193 #elif AD_VERSION == AD_VERSION2
194 #define AD_DATASZ AD_DATASZ2
198 * some legacy defines from netatalk-990130
199 * (to keep from breaking certain packages)
203 #define ADEDOFF_RFORK 589
204 #define ADEDOFF_NAME 86
205 #define ADEDOFF_COMMENT 341
206 #define ADEDOFF_FINDERI 557
207 #ifndef ADEDOFF_FILEI
208 #define ADEDOFF_FILEI 541
211 typedef u_int32_t cnid_t;
214 * The header of the AppleDouble Header File looks like this:
220 * Home File System 16 (this becomes filler in ad v2)
221 * Number of Entries 2
222 * Entry Descriptors for each entry:
233 typedef struct adf_lock_t {
236 int *refcount; /* handle read locks with multiple users */
248 adf_lock_t *adf_lock;
249 int adf_refcount, adf_lockcount, adf_lockmax;
253 #define ATTRBIT_DOPEN (1<<3) /* data fork already open */
254 #define ATTRBIT_ROPEN (1<<4) /* resource fork already open */
256 /* some header protection */
257 #define AD_INITED 0xad494e54 /* ad"INT" */
262 u_int32_t ad_version;
263 char ad_filler[ 16 ];
264 struct ad_entry ad_eid[ ADEID_MAX ];
265 struct ad_fd ad_data_fork, ad_resource_fork, ad_metadata_fork;
266 struct ad_fd *ad_md; /* either ad_resource or ad_metadata */
269 unsigned int ad_inited;
271 int ad_refcount; /* used in afpd/ofork.c */
272 off_t ad_rlen; /* ressource fork len with AFP 3.0
273 the header parameter size is too small.
275 char *ad_m_name; /* mac name for open fork */
277 struct adouble_fops *ad_ops;
280 u_int16_t ad_open_forks; /* open forks (by others) */
282 #ifdef USE_MMAPPED_HEADERS
285 char ad_data[AD_DATASZ_MAX];
289 struct adouble_fops {
290 char *(*ad_path)(const char *, int);
291 int (*ad_mkrf)(char *);
293 int (*ad_rebuild_header)(struct adouble *);
294 int (*ad_check_header)(struct adouble *, struct stat *);
295 int (*ad_header_read)(struct adouble *, struct stat *);
297 int (*ad_header_upgrade)(struct adouble *, char *);
301 #define ADFLAGS_DF (1<<0)
302 #define ADFLAGS_HF (1<<1)
303 #define ADFLAGS_DIR (1<<2)
304 #define ADFLAGS_NOADOUBLE (1<<3)
305 #define ADFLAGS_V1COMPAT (1<<4)
306 #define ADFLAGS_NOHF (1<<5) /* not an error if no ressource fork */
307 #define ADFLAGS_RDONLY (1<<6) /* don't try readwrite */
308 #define ADFLAGS_OPENFORKS (1<<7) /* check for open fork in ad_metadata function */
309 #define ADFLAGS_RF (1<<8)
310 #define ADFLAGS_MD ADFLAGS_HF /* (1<<9) */
311 #define ADFLAGS_CREATE (1<<9)
313 /* adouble v2 cnid cache */
314 #define ADVOL_NODEV (1 << 0)
315 #define ADVOL_CACHE (1 << 1)
316 /* adouble unix priv */
317 #define ADVOL_UNIXPRIV (1 << 2)
318 /* dot files (.DS_Store) are invisible) */
319 #define ADVOL_INVDOTS (1 << 3)
322 #define ADLOCK_CLR (0)
323 #define ADLOCK_RD (1<<0)
324 #define ADLOCK_WR (1<<1)
325 #define ADLOCK_MASK (ADLOCK_RD | ADLOCK_WR)
326 #define ADLOCK_UPGRADE (1<<2)
327 #define ADLOCK_FILELOCK (1<<3)
329 /* we use this so that we can use the same mechanism for both byte
330 * locks and file synchronization locks. i do this by co-opting either
331 * first bits on 32-bit machines or shifting above the last bit on
332 * 64-bit machines. this only matters for the data fork. */
333 #if defined(TRY_64BITOFF_T) && (~0UL > 0xFFFFFFFFU)
334 /* synchronization locks */
335 #define AD_FILELOCK_BASE (0x80000000)
337 #define AD_FILELOCK_BASE (0x7FFFFFFF -9)
341 * AD_FILELOCK_BASE case
343 #if _FILE_OFFSET_BITS == 64
344 #define BYTELOCK_MAX (0x7FFFFFFFFFFFFFFFULL)
346 /* Tru64 is an always-64-bit OS; version 4.0 does not set _FILE_OFFSET_BITS */
348 #define BYTELOCK_MAX (0x7FFFFFFFFFFFFFFFULL)
350 #define BYTELOCK_MAX (0x7FFFFFFFU)
354 #define AD_FILELOCK_OPEN_WR (AD_FILELOCK_BASE + 0)
355 #define AD_FILELOCK_OPEN_RD (AD_FILELOCK_BASE + 1)
356 #define AD_FILELOCK_DENY_WR (AD_FILELOCK_BASE + 2)
357 #define AD_FILELOCK_DENY_RD (AD_FILELOCK_BASE + 3)
358 #define AD_FILELOCK_OPEN_NONE (AD_FILELOCK_BASE + 4)
360 /* time stuff. we overload the bits a little. */
361 #define AD_DATE_CREATE 0
362 #define AD_DATE_MODIFY 4
363 #define AD_DATE_BACKUP 8
364 #define AD_DATE_ACCESS 12
365 #define AD_DATE_MASK (AD_DATE_CREATE | AD_DATE_MODIFY | \
366 AD_DATE_BACKUP | AD_DATE_ACCESS)
367 #define AD_DATE_UNIX (1 << 10)
368 #define AD_DATE_START htonl(0x80000000)
369 #define AD_DATE_DELTA 946684800
370 #define AD_DATE_FROM_UNIX(x) htonl((x) - AD_DATE_DELTA)
371 #define AD_DATE_TO_UNIX(x) (ntohl(x) + AD_DATE_DELTA)
373 /* various finder offset and info bits */
374 #define FINDERINFO_FRTYPEOFF 0
375 #define FINDERINFO_FRCREATOFF 4
377 #define FINDERINFO_FRFLAGOFF 8
378 /* finderinfo flags */
379 #define FINDERINFO_ISONDESK (1)
380 #define FINDERINFO_COLOR (0x0e)
381 #define FINDERINFO_ISHARED (1<<6)
382 #define FINDERINFO_HASNOINITS (1<<7)
383 #define FINDERINFO_HASBEENINITED (1<<8)
384 #define FINDERINFO_HASCUSTOMICON (1<<10)
385 #define FINDERINFO_ISSTATIONNERY (1<<11)
386 #define FINDERINFO_NAMELOCKED (1<<12)
387 #define FINDERINFO_HASBUNDLE (1<<13)
388 #define FINDERINFO_INVISIBLE (1<<14)
389 #define FINDERINFO_ISALIAS (1<<15)
391 #define FINDERINFO_FRVIEWOFF 14
392 #define FINDERINFO_CUSTOMICON 0x4
393 #define FINDERINFO_CLOSEDVIEW 0x100
396 /* private AFPFileInfo bits */
397 #define AD_AFPFILEI_OWNER (1 << 0) /* any owner */
398 #define AD_AFPFILEI_GROUP (1 << 1) /* ignore group */
399 #define AD_AFPFILEI_BLANKACCESS (1 << 2) /* blank access permissions */
401 #define ad_data_fileno(ad) ((ad)->ad_data_fork.adf_fd)
402 #define ad_reso_fileno(ad) ((ad)->ad_resource_fork.adf_fd)
403 #define ad_meta_fileno(ad) ((ad)->ad_md->adf_fd)
405 #define ad_getversion(ad) ((ad)->ad_version)
407 #define ad_getentrylen(ad,eid) ((ad)->ad_eid[(eid)].ade_len)
408 #define ad_setentrylen(ad,eid,len) \
409 ((ad)->ad_eid[(eid)].ade_len = (len))
410 #define ad_getentryoff(ad,eid) ((ad)->ad_eid[(eid)].ade_off)
411 #define ad_entry(ad,eid) ((caddr_t)(ad)->ad_data + \
412 (ad)->ad_eid[(eid)].ade_off)
414 #define ad_get_HF_flags(ad) ((ad)->ad_resource_fork.adf_flags)
415 #define ad_get_MD_flags(ad) ((ad)->ad_md->adf_flags)
420 extern int ad_rebuild_adouble_header __P((struct adouble *));
421 extern int ad_rebuild_sfm_header __P((struct adouble *));
423 extern int ad_flush __P((struct adouble *));
424 extern int ad_close __P((struct adouble *, int));
427 extern int ad_fcntl_lock __P((struct adouble *, const u_int32_t /*eid*/,
428 const int /*type*/, const off_t /*offset*/,
429 const off_t /*len*/, const int /*user*/));
430 extern void ad_fcntl_unlock __P((struct adouble *, const int /*user*/));
432 extern int ad_fcntl_tmplock __P((struct adouble *, const u_int32_t /*eid*/,
433 const int /*type*/, const off_t /*offset*/,
434 const off_t /*len*/, const int /*user*/));
436 extern int ad_testlock __P((struct adouble * /*adp*/, int /*eid*/, off_t /*off*/));
437 extern int ad_excl_lock __P((struct adouble * /*adp*/, const u_int32_t /*eid*/));
439 #define ad_lock ad_fcntl_lock
440 #define ad_tmplock ad_fcntl_tmplock
441 #define ad_unlock ad_fcntl_unlock
444 extern int ad_setfuid __P((const uid_t ));
445 extern uid_t ad_getfuid __P((void ));
447 extern char *ad_dir __P((const char *));
448 extern char *ad_path __P((const char *, int));
449 extern char *ad_path_osx __P((const char *, int));
450 extern char *ad_path_ads __P((const char *, int));
451 extern char *ad_path_sfm __P((const char *, int));
453 extern int ad_mode __P((const char *, int));
454 extern int ad_mkdir __P((const char *, int));
455 extern void ad_init __P((struct adouble *, int, int ));
457 extern int ad_open __P((const char *, int, int, int, struct adouble *));
458 extern int ad_refresh __P((struct adouble *));
459 extern int ad_stat __P((const char *, struct stat *));
460 extern int ad_metadata __P((const char *, int, struct adouble *));
462 #define ad_open_metadata(name, flags, mode, adp)\
463 ad_open(name, ADFLAGS_MD|(flags), O_RDWR |(mode), 0666, (adp))
465 #define ad_close_metadata(adp) ad_close( (adp), ADFLAGS_MD)
467 /* build a resource fork mode from the data fork mode:
468 * remove X mode and extend header to RW if R or W (W if R for locking),
474 static __inline__ mode_t ad_hf_mode (mode_t mode)
476 mode &= ~(S_IXUSR | S_IXGRP | S_IXOTH);
477 /* fnctl lock need write access */
478 if ((mode & S_IRUSR))
480 if ((mode & S_IRGRP))
482 if ((mode & S_IROTH))
485 /* if write mode set add read mode */
486 if ((mode & S_IWUSR))
488 if ((mode & S_IWGRP))
490 if ((mode & S_IWOTH))
496 extern mode_t ad_hf_mode __P((mode_t ));
499 /* ad_read.c/ad_write.c */
500 extern ssize_t ad_read __P((struct adouble *, const u_int32_t,
501 const off_t, char *, const size_t));
502 extern ssize_t ad_pread __P((struct ad_fd *, void *, size_t, off_t));
504 extern ssize_t ad_write __P((struct adouble *, const u_int32_t, off_t,
505 const int, const char *, const size_t));
507 extern ssize_t adf_pread __P((struct ad_fd *, void *, size_t, off_t));
508 extern ssize_t adf_pwrite __P((struct ad_fd *, const void *, size_t, off_t));
510 extern int ad_dtruncate __P((struct adouble *, const off_t));
511 extern int ad_rtruncate __P((struct adouble *, const off_t));
514 extern off_t ad_size __P((const struct adouble *, const u_int32_t ));
517 extern void *ad_mmapread __P((struct adouble *, const u_int32_t,
518 const off_t, const size_t));
519 extern void *ad_mmapwrite __P((struct adouble *, const u_int32_t,
520 const off_t, const int, const size_t));
521 #define ad_munmap(buf, len) (munmap((buf), (len)))
524 extern int ad_setdate __P((const struct adouble *, unsigned int, u_int32_t));
525 extern int ad_getdate __P((const struct adouble *, unsigned int, u_int32_t *));
528 extern int ad_setattr __P((const struct adouble *, const u_int16_t));
529 extern int ad_getattr __P((const struct adouble *, u_int16_t *));
531 extern int ad_setname __P((struct adouble *, const char *));
532 #if AD_VERSION == AD_VERSION2
533 extern int ad_setid __P((struct adouble *, const dev_t dev,const ino_t ino, const u_int32_t, const u_int32_t, const void *));
534 extern u_int32_t ad_getid __P((struct adouble *, const dev_t, const ino_t, const cnid_t, const void *));
536 #define ad_setid(a, b, c)
540 extern ssize_t ad_readfile __P((const struct adouble *, const int,
541 const int, off_t, const size_t));
545 #ifdef HAVE_SENDFILE_WRITE
546 extern ssize_t ad_writefile __P((struct adouble *, const int,
547 const int, off_t, const int, const size_t));